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Author(s): Xavier Romão
Raimundo Delgado
Aníbal Costa
Title: Probabilistic characterization of structural demand under earthquake loading - Revisiting the lognormality assumption
Issue Date: 2010
Abstract: Probabilistic methods are widely used to assess the performance of structures under earthquake loading andrequire an adequate probabilistic characterization of the structural demand. Currently, many existing seismicsafety assessment studies are developed under the assumption that structural demand conditional to a givenseismic intensity follows a lognormal distribution. Given the importance of this assumption, an in-depth analysisof its validity is carried out for several case studies using adequate statistical methods. This assessment of theprobabilistic demand distribution type is based on the analysis of 5 reinforced concrete framed structuressubjected to sets of 50 real ground motion records scaled to several intensities. The structural demand parametersaddressed by the study are the chord rotation, the curvature, the shear force and the inter-storey drift.
Subject: Engenharia estrutural, Engenharia civil
Structural engineering, Civil engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia civil
Engineering and technology::Civil engineering
Source: 14th European Conference on Earthquake Engineering
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: openAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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